Study on the correlation between iris blood flow, iris thickness and pupil diameter in the resting state and after pharmacological mydriasis in patients with diabetes mellitus

Table 2 The changes of iris parameters after drug-induced mydriasis among type 1 diabetes mellitus children and healthy kids

	Parameters	Healthy Kids N = 36	T1DM Kids N = 34	P value
Baseline
	Pupil Diameter	5.32 ± 0.85	5.14 ± 0.81	0.364
	Whole VAD	0.25 ± 0.07	0.23 ± 0.06	0.079
	Whole VSD	0.19 ± 0.05	0.17 ± 0.05	0.071
	Outer 2/3VAD	0.24 ± 0.06	0.23 ± 0.06	0.354
	Outer 2/3VSD	0.18 ± 0.05	0.17 ± 0.05	0.240
	Pupillary Margin VAD	0.30 ± 0.10	0.26 ± 0.07	0.109
	Pupillary Margin VSD	0.21 ± 0.07	0.19 ± 0.05	0.299
	Iris Thickness at SMR	0.41 ± 0.06	0.39 ± 0.07	0.632
	Iris Thickness at DMR	0.35 ± 0.06	0.34 ± 0.05	0.637
	Iris volume	33.35 ± 3.27	32.75 ± 4.10	0.502
After Mydriasis
	Pupil Diameter	7.71 ± 0.61	7.69 ± 0.68	0.900
	Whole VAD	0.30 ± 0.08	0.28 ± 0.08	0.353
	Whole VSD	0.21 ± 0.05	0.21 ± 0.05	0.640
	Outer 2/3VAD	0.31 ± 0.07	0.29 ± 0.07	0.986
	Outer 2/3VSD	0.21 ± 0.07	0.20 ± 0.05	0.577
	Pupillary Margin VAD	0.22 ± 0.06	0.24 ± 0.09	0.361
	Pupillary Margin VSD	0.16 ± 0.07	0.18 ± 0.06	0.184
	Iris volume	28.22 ± 3.32	27.87 ± 4.18	0.706

T1DM = type 1 diabetes mellitus; VAD = vessel area density; VSD = vessel skeleton density; SMR = sphincter muscle region; DMR = dilator muscle region

ISSN: 1471-2415